http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-842269-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cd98fdf0640e1bd9a4f15b9dab327391 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-1379 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-1352 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31855 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L61-24 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D127-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B65D1-0215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B65D25-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-0427 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L27-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-043 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L61-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B65D25-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L27-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B65D1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D127-06 |
| filingDate | 1957-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1960-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-842269-A |
| titleOfInvention | Improvements in or relating to a sealable synthetic resinous article |
| abstract | A composition for application to synthetic resinous surfaces to render them less permeable to organic liquids comprises a mixture of a co-polymer of vinyl chloride, vinyl acetate and vinyl alcohol and an etherified urea-formaldehyde resin. From 20 to 90% of the former and 80 to 10% of the latter may be used. The components are mixed in an organic solvent, e.g. a toluenemethyl ethyl ketone-xylol-butanol mixture, applied to the surface and cured by heat or irradiation, or both. When curing is by irradiation, graft polymerisation between the coating and the substrate may take place. U.S.A. Reissue Specification 24,062 and U.S.A. Specifications 2,059,706, 2,069,844, 2,547,684, 2,632,921, 2,704,362, 2,715,075, 2,715,076 and 2,715,077 are referred to.ALSO:A sealable synthetic resinous article having a surface characterized by enhanced resistance to permeation by organic fluids has on its surface a cured coating of a composition consisting essentially of a copolymer of vinyl chloride, vinyl acetate and vinyl alcohol and an alcoholic type urea-formaldehyde resin. The composition may contain 20 to 90% of the copolymer and 80 to 10% of the ureaformaldehyde, and is applied in solution in an organic solvent by dipping or spraying or in the case of containers by filling and draining. The coating may be cured by heating at 160 DEG -200 DEG F. for 30-120 minutes, or by irradiation, or by both heat and irradiation. Catalysts such as sulphuric acid may be added. Examples are given of lining polyethylene and polymethylene bottles, and coating polystyrene sheets to be made into envelopes and sachets. The process is also applicable to other synthetic resins, rubber and its derivatives, and cellulose esters and ethers. The surfaces may be pre-treated with sodium dichromate and sulphuric acid, or by flaming. U.S.A. Re-issue Specification 24,062 and U.S.A. Specifications 2,059,706, 2,069,844, 2,547,684, 2,632,921, 2,704,362, 2,715,075, 2,715,076, and 2,715,077 are referred to. |
| priorityDate | 1956-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.